/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the License at the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apereo.portal.url;

import java.io.UnsupportedEncodingException;
import javax.servlet.http.HttpServletRequest;

/**
 * Encode the originally requested URL for use as a RefUrl parameter in various login use cases
 * (internal, external CAS, etc.).
 */
public interface LoginRefUrlEncoder {

    /**
     * Encodes an URL that includes a login URL and a reference to the originally-requested URL for
     * use in a browser redirect.
     *
     * @param request HTTP Request
     * @param loginUrl Login URL
     * @return encoded redirect string
     * @throws UnsupportedEncodingException
     */
    String encodeLoginAndRefUrl(HttpServletRequest request) throws UnsupportedEncodingException;
}
